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Finding the Fourth Proportional to 61,254.43, 91,865.24 and 16,870.68

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Solution

The fourth proportional to 61,254.43, 91,865.24 and 16,870.68 is: 25,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,254.43 : 91,865.24 = 16,870.68 : x
  2. Step 2: Convert to fraction form
    61,254.43/91,865.24 = 16,870.68/x
  3. Step 3: Cross multiply
    61,254.43x = 91,865.24 × 16,870.68
  4. Step 4: Simplify right side
    61,254.43x = 1,549,829,046.07
  5. Step 5: Solve for x
    x = 1,549,829,046.07/61,254.43
  6. Step 6: Final answer
    x = 25,301.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.